Surgical cannula



FIG. 1 is a perspective view of the surgical cannula with the proximal end of the surgical cannula positioned in an upward position;

FIG. 2 is a perspective top view of the surgical cannula of FIG. 1 with the proximal end of the surgical cannula positioned in an upward position;

FIG. 3 is a perspective view of the surgical cannula of FIG. 1;

FIG. 4 is a side view of a first side of the surgical cannula of FIG. 1;

FIG. 5 is a side view of a second side of the surgical cannula of FIG. 1;

FIG. 6 is a side view of a third side of the surgical cannula of FIG. 1;

FIG. 7 is a side view of a fourth side of the surgical cannula of FIG. 1;

FIG. 8 is a view of the proximal end of the surgical cannula of FIG. 1;

FIG. 9 is a view of the distal end of the surgical cannula of FIG. 1; and,

FIG. 10 is a close-up perspective view of the proximal end of the surgical cannula of FIG. 1.

The broken lines in the drawings illustrate portions of the surgical cannula which form no part of the claimed design. 

CLAIM We claim the ornamental design for a surgical cannula, as shown and described. 